scholarly journals Non-equilibrium critical phenomena from probe brane holography in Schrödinger spacetime

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Ali Vahedi ◽  
Mobin Shakeri
Keyword(s):  
Critical Phenomena ◽  
Probe Brane ◽  
Non Equilibrium

Theory of non-equilibrium critical phenomena in three-dimensional condensed systems of charged mobile nanoparticles

2014 ◽  
Vol 16 (27) ◽  
pp. 13974-13983 ◽  
Author(s):  
V. N. Kuzovkov ◽  
G. Zvejnieks ◽  
E. A. Kotomin
Keyword(s):  
Critical Phenomena ◽  
3D Structure ◽  
Three Dimensional ◽  
Charged Nanoparticles ◽  
Self Assembled ◽  
Oppositely Charged ◽  
Condensed Systems ◽  
Non Equilibrium

The 3d structure of self-assembled and oppositely charged nanoparticles.

scholarly journals UNIVERSAL SCALING BEHAVIOR OF NON-EQUILIBRIUM PHASE TRANSITIONS

2004 ◽  
Vol 18 (31n32) ◽  
pp. 3977-4118 ◽  
Author(s):  
SVEN LÜBECK
Keyword(s):  
Renormalization Group ◽  
Phase Transitions ◽  
Critical Phenomena ◽  
Equilibrium Phase ◽  
Finite Size ◽  
Universality Class ◽  
Scaling Functions ◽  
Universal Scaling ◽  
Universality Classes ◽  
Non Equilibrium

Non-equilibrium critical phenomena have attracted a lot of research interest in the recent decades. Similar to equilibrium critical phenomena, the concept of universality remains the major tool to order the great variety of non-equilibrium phase transitions systematically. All systems belonging to a given universality class share the same set of critical exponents, and certain scaling functions become identical near the critical point. It is known that the scaling functions vary more widely between different universality classes than the exponents. Thus, universal scaling functions offer a sensitive and accurate test for a system's universality class. On the other hand, universal scaling functions demonstrate the robustness of a given universality class impressively. Unfortunately, most studies focus on the determination of the critical exponents, neglecting the universal scaling functions. In this work a particular class of non-equilibrium critical phenomena is considered, the so-called absorbing phase transitions. Absorbing phase transitions are expected to occur in physical, chemical as well as biological systems, and a detailed introduction is presented. The universal scaling behavior of two different universality classes is analyzed in detail, namely the directed percolation and the Manna universality class. Especially, directed percolation is the most common universality class of absorbing phase transitions. The presented picture gallery of universal scaling functions includes steady state, dynamical as well as finite size scaling functions. In particular, the effect of an external field conjugated to the order parameter is investigated. Incorporating the conjugated field, it is possible to determine the equation of state, the susceptibility, and to perform a modified finite-size scaling analysis appropriate for absorbing phase transitions. Focusing on these equations, the obtained results can be applied to other non-equilibrium continuous phase transitions observed in numerical simulations or experiments. Thus, we think that the presented picture gallery of universal scaling functions is valuable for future work. Additionally to the manifestation of universality classes, universal scaling functions are useful in order to check renormalization group results quantitatively. Since the renormalization group theory is the basis of our understanding of critical phenomena, it is of fundamental interest to examine the accuracy of the obtained results. Due to the continuing improvement of computer hardware, accurate numerical data have become available, resulting in a fruitful interplay between numerical investigations and renormalization group analyzes.

scholarly journals Aging and non-equilibrium critical phenomena in Monte Carlo simulations of 3D pure and diluted Ising models

2015 ◽  
Vol 2015 (5) ◽  
pp. 53A01-0 ◽  
Author(s):  
P. V. Prudnikov ◽  
V. V. Prudnikov ◽  
E. A. Pospelov ◽  
P. N. Malyarenko ◽  
A. N. Vakilov
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Critical Phenomena ◽  
Ising Models ◽  
Non Equilibrium

Application of analytical electron microscopy to studies of equilibrium and non-equilibrium segregation in materials

1992 ◽  
Vol 50 (2) ◽  
pp. 1214-1215
Author(s):  
Edward A Kenik
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Extended Defects ◽  
Probe Diameter ◽  
Specimen Holder ◽  
Analytical Electron ◽  
Scanning Transmission ◽  
Solute Atoms ◽  
Equilibrium Segregation ◽  
Non Equilibrium

Segregation of solute atoms to grain boundaries, dislocations, and other extended defects can occur under thermal equilibrium or non-equilibrium conditions, such as quenching, irradiation, or precipitation. Generally, equilibrium segregation is narrow (near monolayer coverage at planar defects), whereas non-equilibrium segregation exhibits profiles of larger spatial extent, associated with diffusion of point defects or solute atoms. Analytical electron microscopy provides tools both to measure the segregation and to characterize the defect at which the segregation occurs. This is especially true of instruments that can achieve fine (<2 nm width), high current probes and as such, provide high spatial resolution analysis and characterization capability. Analysis was performed in a Philips EM400T/FEG operated in the scanning transmission mode with a probe diameter of <2 nm (FWTM). The instrument is equipped with EDAX 9100/70 energy dispersive X-ray spectrometry (EDXS) and Gatan 666 parallel detection electron energy loss spectrometry (PEELS) systems. A double-tilt, liquid-nitrogen-cooled specimen holder was employed for microanalysis in order to minimize contamination under the focussed spot.

Equilibrium and Non-Equilibrium Statistical Thermodynamics

2004 ◽  
Author(s):  
Michel Le Bellac ◽  
Fabrice Mortessagne ◽  
G. George Batrouni
Keyword(s):  
Statistical Thermodynamics ◽  
Non Equilibrium
Sign in / Sign up

Export Citation Format

Share Document